• Title/Summary/Keyword: Economic Scale

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Economic Evaluation of Domestic Low-Temperature Water Electrolysis Hydrogen Production (국내 저온수전해 수소생산의 경제성 평가)

  • Gim, Bong-Jin;Kim, Jong-Wook;Ko, Hyun-Min
    • Journal of Hydrogen and New Energy
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    • v.22 no.4
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    • pp.559-567
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    • 2011
  • This paper deals with an economic evaluation of domestic low-temperature water electrolysis hydrogen production. We evaluate the economic feasibility of on-site hydrogen fueling stations with the hydrogen production capacity of 30 $Nm^3/hr$ by the alkaline and the polymer electrolyte membrane water electrolysis. The hydrogen production prices of the alkaline water electrolysis, the polymer electrolyte membrane water electrolysis, and the steam methane reforming hydrogen fueling stations with the hydrogen production capacity of 30 $Nm^3/hr$ were estimated as 18,403 $won/kgH_2$, 22,945 $won/kgH_2$, 21,412 $won/kgH_2$, respectively. Domestic alkaline water electrolysis hydrogen production is evaluated as economical for small on-site hydrogen fueling stations, and we need to further study the economic evaluation of low-temperature water electrolysis hydrogen production for medium and large scale on-site hydrogen fueling stations.

Differences in Attitudes and Behaviors toward Money of the College Students after and before IMF Economic Crisis (IMF 경제위기 전후 대학생의 돈에 대한 태도와 행동 차이)

  • Kim, Jung-Hoon;Dong, Hwan-Suk
    • Korean Journal of Human Ecology
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    • v.11 no.3
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    • pp.237-247
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    • 2002
  • The purpose of this study was to compare the attitudes and behaviors toward money among college students after and before IMF economic crisis. The subject of investigation consists of 389 students in the year of 1995 and 112 students in the year of 2000 in Wonkwang university. The major findings are as follows: 1) The exploratory factor analysis of money attitudes and behaviors scale drew four factors such as; power, obsession, money management and pleasure. 2) Male students have a tendency more likely than females not only to look upon money as power but also to have an obsession before IMF economic crisis. But gender differences were disappeared after. 3) In comparison of the before and after IMF economic crisis, the behavior value in reference to money is generally increased. The social power and the cognitive attitude like an obsessional increased smaller than that of a practical such as money management or pleasure. The pleasure is raised the largest. 4) The level of attitudes and behavior for money management is raised the most for female students while, the value of the pleasure has the greatest increase for male students rate.

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Economical Design of Water Level Monitoring Network for Agricultural Water Quantification (농업용수 정량화를 위한 경제적 수위계측망 설계)

  • Kim, Sun Joo;Kwon, Hyung Joong;Kim, Il Jung;Kim, Phil Shik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.5
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    • pp.19-28
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    • 2016
  • This study was to design the optimal locations of the water level monitoring to quantify the agricultural water use in irrigation area supplied from an agricultural reservoir. In most of agricultural areas without TM/TC (Tele-Monitoring and Tele-Control) or monitoring network, irrigation water have been supplied on conventional experience and agricultural reservoir have been operated based on the operating simulation results by HOMWRS (Hydrological Operation Model for Water Resources System). Therefore, this study quantified the amount of agricultural water use in an irrigation area (Musu Reservoir, Jincheon-gun) by establishing water level monitoring network and analyzed the agricultural water saving effect. According to the evaluation of the economic values for water saving effect, the saving agricultural water of 1.7 million ton was analyzed to have economic values of 0.85 million won as water for living, and 1.78 million won as water for industrial use. It is identified to secure economic feasibility of the new water monitoring network by establishing one monitoring point in the entrance, irrigation area and endpoint through the economic analysis.

The impact of globalization on business and economic development in Zimbabwe

  • Mago, Stephen;Musasa, Gabriel;Matunhu, Jephias
    • Asian Journal of Business Environment
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    • v.3 no.2
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    • pp.31-37
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    • 2013
  • Purpose - This paper objectively analyzes the effects of globalization on Zimbabwe's business and economic development using the Business in Context (BIC) model. Research design, data, and methodology - We employed a qualitative research methodology, following an exploratory secondary research design in this paper. Results - The findings reveal that businesses in Zimbabwe have benefited from globalization as it has drawn investments from international companies in the country. In addition, the business sector is benefiting from the economies of scale realized from the investments made by companies in Africa, East Asia, Europe, and America. However, we also discover that globalization has resulted in the proliferation of cheap sub-standard goods and services from East Asia, and has increased competition between indigenous companies and foreign-owned multinationals. Conclusion - Our findings suggest that globalization has both positive and negative effects on business and economic development in Africa in general, and Zimbabwe in particular. However, we note that the advantages, to a certain extent, outweigh the disadvantages. What, then, could be the way forward for Zimbabwe, in the face of globalization? As a solution, this paper recommends the development of a policy on global associations by the Zimbabwean government, to enhance business and economic development.

Does National Distance Affect Different Industries in Different Ways? A Test of the Ghemawat CAGE Model

  • Kim, Hak Cho;Kwon, Jong-Wook;Zhou, Zhibin;Heo, Ji Hyun
    • Journal of Korea Trade
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    • v.23 no.7
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    • pp.13-33
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    • 2019
  • Purpose - This study empirically investigated whether national distances (Cultural, Administrative, Geographic and Economic distance) have different effects on industries in different ways. Design/methodology - The empirical model utilized industry level export trade data to examine the differentiated effects of each national distance. By using direct measurement and covering 75 countries, this paper analyzes the effect of distances in different industries. More specifically, this study classified the industries into a more-sensitive/less-sensitive scale. Findings - The empirical results showed the complicated impacts of national distances on trade. Trade in industries that are more sensitive to cultural and administrative distances was not decreased as greatly as trade in industries that are less sensitive to cultural and administrative distances. Also, industries that are more sensitive to geographic distance showed a stronger negative impact on trade than less sensitive industries. Lastly, economic distance decreased trade for industries that are more sensitive to economic distance, while economic distance did not significantly increase trade for industries that are less sensitive to economic distance. Originality/value - As the first study to empirically find out whether national distance has different effects on industries, this study updated the measurements of national distance.

Analysis on the Increasing Marginal Revenue of the Network Economy

  • Yang, Jian
    • The Journal of Economics, Marketing and Management
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    • v.6 no.3
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    • pp.10-13
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    • 2018
  • Purpose - On the basis of discussing the network economy concept and the commentary of the marginal revenue decreasing of traditional economic theory, The concept of network economy has just been put forward in recent years. The reason why such a concept appears is that the information technology, marked by computer network, plays an increasingly important role in economic activities. Some people define network economy as an economic form based on network technology and human capital. this paper points out network economy existing the marginal revenue increasing and analyzes the reasons that influencing the marginal revenue increasing. Research design, data, methodology - The network economy has fundamentally changed the traditional economic laws. The economic basis of industrial society is the law of incremental marginal cost, which reflects the socialization of high cost in industrial society. Results - As the number of network members increases, the value of the network increases explosively, and the value increases attract more members to join, resulting in more returns. Conclusion - In conclusion, network economy has changed many aspects of traditional economy, resulting in decreasing marginal cost, decreasing transaction cost in and out of enterprise organizations, and making the effect of increasing scale compensation more prominent. This is of great significance to the information construction in China.

Technology Adoption Issues and Challenges for Micro, Small and Medium Enterprises: A Case Study of the Food and Beverage Sub-Sector in Indonesia

  • PRANATA, Nika;SOEKARNI, Muhammad;MYCHELISDA, Erla;NOVANDRA, Rio;NUGROHO, Agus Eko;RIFAI, Bahtiar;BUHAERAH, Pihri;ZULHAMDANI, Muhammad;YULIANA, Retno Rizki Dini
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.3
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    • pp.265-274
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    • 2022
  • MSMEs in the food and beverage industry play a critical role in the Indonesian economy since they account for the majority of the manufacturing sector's GDP. Despite its importance, it is unable to compete on a worldwide scale due to a lack of technological adoption. As a result, the purpose of this study is to look into the concerns and challenges that F&B MSMEs have when it comes to technology adoption. An online survey of 626 MSMEs and in-depth interviews as well as focus groups with diverse stakeholders from four provinces, namely West Java, East Java, South Sulawesi, and North Sumatera, provided the data for this study. To be thorough, the approach used in the study is based on the Technology, Organization, and Environment (TOE) framework. According to the findings, the majority of MSMEs use technology for marketing and sales, mainly through e-commerce. Meanwhile, for a variety of reasons, most of them continue to rely on traditional and semi-automatic technologies for production. According to the TOE framework, MSMEs lack those three parts of the technology adoption framework, particularly the environmental aspect, which is mostly due to a lack of cooperation among stakeholders. Finally, as a policy proposal, we offer a comprehensive technology adoption strategy based on the findings through an integrated MSMEs development information system including many important stakeholders.

Economic Analysis and Fee Development by Relative Value Scale of Nursing Practices by Emergency Nurse Practitioner (응급전문간호행위에 대한 건강보험 상대가치 수가개발 및 경제성 평가)

  • Kim, Jin Hyun;Kim, Kyung Sook;Kim, Mi Won;Lee, Kyoung-A
    • Korean Journal of Adult Nursing
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    • v.25 no.3
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    • pp.275-288
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    • 2013
  • Purpose: The purpose of this study was to perform an economic analysis and estimate the fee for the practices that carried out by Emergency Nurse Practitioner (ENP) using relative value scale (RVS) and its conversion factor. Methods: First, we developed ENP's RVS for 25 advanced nursing services based on ENP's workload and its time spent by survey. A cost analysis was performed to evaluate the conversion factor of ENP's RVS. The share of ENP's contribution to fee-for-service in emergency setting was also analyzed. Results: Calculation of the RVS of 25 advanced nursing practices showed a range of points from 73.4 to 296.3 and an average of 145.1 points. The relevant conversion factor for advanced nursing practices among ENP was estimated at 12.2~15.9 won. The contribution rate of ENP's advanced nursing practices in the relative value scale of the national health insurance was estimated at 13.1~17.0%. Conclusion: The practices of ENP are not compensated separately and its reimbursement is usually included in physician fee. An estimation of nursing fee and an independent fee related to ENP's services shows the contribution rate to total revenue. It suggests that emergency nurse practitioners be considered as a revenue source the in emergency room.

Structural Geometry of a Regional-scale Overturned Fold in the Daecheong Island, Central-western Korean Peninsula (한반도 중서부 대청도에 발달하는 광역규모 과습곡의 구조기하학적 특징)

  • Jeong-Yeong Park;Deung-Lyong Cho;Seung Hwan Lee;Yujung Kwak;Seung-Ik Park
    • Economic and Environmental Geology
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    • v.57 no.1
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    • pp.41-50
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    • 2024
  • This study reports the structural geometry and folding mechanism of a regional-scale overturned fold in the Daecheong Island, central-western part of the Korean Peninsula. Based on low-hemisphere stereographic and down-plunge projections using data from a detailed field survey, we classify the regional-scale fold as an open overturned fold shallowly plunging toward NE. The asymmetric and symmetric parasitic folds in the limb and hinge zones indicate layer-parallel shortening prior to flexural-flow folding. Fold dating must be required to decipher the orogenic process causing the regional-scale overturned fold in the Daecheong Island.

Relationship between Temperature Distributions and Outbreaks of Harmful Algal Blooms in Korean Waters

  • Han, In-Seong;Jang, Lee-Hyun;Sub, Young-Sang;Seong, Ki-Tack
    • Fisheries and Aquatic Sciences
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    • v.11 no.1
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    • pp.50-60
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    • 2008
  • Harmful algal blooms (HABs) of Cochlodinium polykrikoides frequently occur around the South Sea of Korea, causing. economic losses in coastal breeding grounds. HAB outbreak scale usually changes each year depending on physical, biological and environmental conditions. Relatively large-scale HABs occurred in 1995, 1997, 1999, 2001, 2002 and 2003 with respect to spatial scale, duration and maximum density. Considering HAB scale and temperature distributions around the South Sea, we found that low coastal temperatures in August correspond to enormous HAB outbreaks. Cold waters created by coastal upwellings around the southeastern coast of Korea also corresponded to these outbreaks. Serial oceanographic investigations in August in the South Sea revealed that sea surface temperature anomalies had distinctively negative values when large-scale HAB outbreaks appeared. With regard to temperature differences between the surface and the 30-m layer, there was a tendency for large-scale outbreaks when temperature gradients around the seasonal thermocline weakened.